We recently installed quite a few Ethernet Routing Switch 4850GTS-PWR+ switches into our network. Since we have quite a few custom home grown applications and scripts that perform backups, idle port reports, etc. I usually need to add the sysObjectID to the list of supported devices and due some quick tests to make sure that everything works properly with the new switch model.

This time around though I quickly found that the sysObjectIDs for the ERS 4800 series switches were missing from SYNTOPICS-ROOT-MIB contained in the most recent software release, v5.6.2.

I received confirmation this morning from Avaya that the SNMP MIBS are missing the proper information and as released don’t include any of the actual sysObjectID OIDs for the Ethernet Routing Switch 4800 switch models.

You can find an updated copy of the SYNOPTICS-ROOT-MIB here. Just replace this file with the SYNOPTICS-ROOT-MIB.mib that is included in the 5.6.2 software release.

You’ll notice that also included are the VSP 7000 and Ethernet Routing Switch 3500 series switches.

This is a follow-up post to my wildly popular article entitled, Nortel ERS 5520 PwR Switch which I posted back in October 2007 providing a working configuration for an Avaya Ethernet Routing Switch 5520 for IP telephony deployments.

Here’s the configuration template that I’m currently using today for the Avaya Ethernet Routing Switch 5500, 4800 and 4500 series switches. This is essentially a best practices configuration for a typical closet/edge switch (Layer 2) with ADAC/LLDP-MED for completely automated, zero-touch IP telephony deployments.

With the firmware that currently ships with the Avaya 1100 and 1200 series IP phones you only need to unbox the phone and connect it to the network. You’ll also need to make sure that you have your provisioning files setup properly but you can easily attain a zero-touch configuration for greenfield deployments.

Please note there are a some options in this post which are only available in the later software releases for each switch model. These commands were tested on an Avaya Ethernet Routing Switch 4850GT-PWR+ running 5.6.2 software.

We need to be in privileged mode before we can enter configuration mode;

enable
configure terminal

Let’s start by setting the read-only and read-write passwords (the default usernames are RO=read-only and RW=read-write)

If you don’t care to see the banner when connecting via telnet then disable it;

banner disable

If you are working with an Avaya Ethernet Routing Switch 5000 series switch let’s disable the UI button on the outside of the switch. This feature is only available on the ERS 5000 series switches so this command won’t work with the ERS 4000 series switches.

no ui-button enable

Let’s set VLAN control to autopvid, this will instruct the switch to change the PVID to the VLAN assigned to the port for access (UntagAll) ports.

vlan configcontrol autopvid

If we have 2 or more switches in a stack configuration we’ll utilizing ports on both switches for our uplinks, 1/48 and 2/48. If we only had a single switch and not a stack of switches we would use 47 and 48. We need to enable 802.1Q trunking (TagAll) and filter (drop) and untagged frames that might accidentally be sent across the port.